Shadow and Sundial Experiment Worksheet

Science experiments lesson 27: Shadows and a sundial · Set 880 · 40 questions

What you do (Shadows point away from the Sun): 1. Stand the stick upright in the ground in an open sunny place. 2. Every hour, mark the tip of the shadow with chalk and write the time. 3. Measure the length of each shadow. 4. Wear a cap and never look straight at the Sun.

1. 1.True or false: a brick is translucent. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a steel plate (b) a brick (c) a wooden board (d) tissue paper
3. 3.🔍 Which is the odd one out? (a) butter paper (b) clean water (c) clear plastic film (d) air
4. 4.🔮 Predict: you move a torch closer to your hand. The shadow on the wall gets ___. (a) bigger (b) brighter (c) coloured (d) smaller
5. 5.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is what we measure? (a) the same spot (b) shadow length (c) the stick kept upright (d) the time of day
6. 6.🌅 In the morning the Sun is in the east. Which way does a shadow point? (a) north (b) east (c) up (d) west
7. 7.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a sunny open place (c) turmeric powder (d) a straight stick
8. 8.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a straight stick (b) a clock to check (c) a sunny open place (d) a battery cell
9. 9.🔦 Is oily paper opaque, translucent or transparent? (a) opaque (b) transparent (c) translucent
10. 10.True or false: a magnet is not needed for the shadow clock. (a) False (b) True
11. 11.🔦 Is a book opaque, translucent or transparent? (a) transparent (b) translucent (c) opaque
12. 12.🔍 Which is the odd one out? (a) clean water (b) tissue paper (c) oily paper (d) butter paper
13. 13.🌞 When is a stick’s shadow the shortest? (a) early morning (b) late evening (c) at night (d) around noon
14. 14.True or false: a straight stick is not needed for the shadow clock. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) clear plastic film (b) clear glass (c) clean water (d) oily paper
16. 16.True or false: air is transparent. (a) False (b) True
17. 17.🧺 Which of these is needed for the shadow clock? (a) a magnet (b) a mirror (c) chalk to mark shadows (d) a balloon
18. 18.🔮 Predict: on a fully cloudy day, the sundial ___. (a) shows two times (b) works better (c) runs faster (d) does not work well
19. 19.🛟 What should you wear for a long time in the hot sun? (a) a woollen sweater (b) nothing on your head (c) a raincoat (d) a cap or hat
20. 20.🔦 Which of these is opaque? (a) frosted glass (b) a wooden board (c) clear glass (d) clear plastic film
21. 21.True or false: a brick is opaque. (a) True (b) False
22. 22.🛟 While watching shadows outdoors, what must you never do? (a) sit in the shade (b) wear a cap (c) mark with chalk (d) look straight at the Sun
23. 23.🔦 Is butter paper opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
24. 24.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) a clock to check (b) yeast (c) a sunny open place (d) chalk to mark shadows
25. 25.📘 Why does a shadow form? (a) the ground is dark (b) light bends round it (c) the object is cold (d) an object blocks light
26. 26.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a magnet (c) a clock to check (d) chalk to mark shadows
27. 27.🔍 Which is the odd one out? (a) clear glass (b) clean water (c) air (d) a steel plate
28. 28.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the stick kept upright is the one thing we change. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) tissue paper (b) butter paper (c) frosted glass (d) a wooden board
30. 30.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same spot is the one thing we change. (a) True (b) False
31. 31.🧺 Three of these are needed for the shadow clock. Which one is NOT needed? (a) chalk to mark shadows (b) a straight stick (c) a magnet (d) a clock to check
32. 32.🔦 Which of these is transparent? (a) butter paper (b) a brick (c) clear glass (d) a book
33. 33.🔦 Is a wooden board opaque, translucent or transparent? (a) transparent (b) opaque (c) translucent
34. 34.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the same stick is kept the same. (a) True (b) False
35. 35.🧺 Which of these is not needed for the shadow clock? (a) a sunny open place (b) a straight stick (c) yeast (d) a clock to check
36. 36.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is kept the same. (a) True (b) False
37. 37.🧺 Do we need a battery cell for the shadow clock? (a) needed (b) not needed
38. 38.🧺 Which of these is needed for the shadow clock? (a) a clock to check (b) a magnet (c) yeast (d) a mirror
39. 39.⚖️ Fair test — how does the shadow of a stick change through the day? Which of these is the one thing we change? (a) the same spot (b) the time of day (c) the stick kept upright (d) the same stick
40. 40.🔮 Predict: the Sun is low in the evening sky. The stick’s shadow is ___. (a) short (b) missing (c) long (d) round

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